Apparatus for treating masonry structures



Sept. 12, 1933. L.. s. WERTZ Y 'APPARATUS FOR TREATING MASONBY STRUCTURES Filed 001;. 28, 1931 viv Patented Sept. l2, 1933 UNITED STATES PATENT ori-lcs APPARATUS FOR TREATING STRUCTURES MASONBY My invention particularly relates to the re pairing of defective areas within the interior of masonry structures and to the strengthening of such structures.

come detective subsequent to the installation of the structure, due to water leakage or other untoward conditions, or they may be defective as the result of conditions at the time of installation, such as a poor mix, improper pouring, forming ot porous areas for various reasons, etc. Thus, from many causes, the interiors of masonry structures become honeycombed with water and air pockets and seamed with leakage channels, evidences of which upon the surfaces of the structures are no more definite than that there is surface leakage. oftentimes, the leakage' channels have their source in soil back of the masonry structure and traverse the full width of the structure, encountering and crossing interior pockets on the route from the rear to the front of the structure. It is the object of my invention hy an improved process and improved means for carrying out the process, to fill these pockets and channels with grout or other repair material forced thereinto, and then to complete the repair operation by plugging the cavity and the repair hole through which the grout has been forced into the structure. The working of the invention also strengthens the structure upon which it is prac-- vloed. 'Ine olonne of this application ore limited to the improved apparatus for treating masonry structures.

Preferably I incorporate with the grout which I utilize for the repair operation some desirable '35 waterproof material, and `for this material .I

prefer to use iron lings which since they oxidize possess a natural ainity for the concrete. Preferably, also, the srout material is mixed with a liberal percentage of water which gradually evaDOrates and would leave parts of the masonry voids unfilled except that the waterproofing material, such as the iron lings, expands due to oxidation, as the water evaporates and preserves the lled condition of the cavities.

The invention herewith presented diners from that described and claimed in United States Patent No. 1,726,60o, issued upon my improved process or treatingmasonry surfaces in that in said patented process, air is depended upon as the vehicle for carrying the repair materiali, and the repair material is projected the enterlor o the masonry surface and into surfme pits thereof; whereas, in the present invention, the repair material is conveyed icy' any suitable and suiiicient forcing rnedilun, and n toi-ced into These interior areas may bethe masonry structure from the interior thereof.

My invention particularly relates to processes of and means for repairing masonry structures which will be of more economical construction and operation than present apparatus and pro- 50 cesses with which I am acquainted, and which will be oi more convenient operation.

The annexed drawingand the following description set forth in detail certain steps illustrating my improved process and certain means 35 exemplifyhlg my improved apparatus, such steps andl means constituting, however, but a few of the various series of steps by yvvl'lich the improved process may be carried out 'and but one oi' the various forms in which the principle of the improved apparatus may he embodied. l

In said annexed drag:

Figure i is a partial elevation and a partial axial section of my improved apparatus lshown. detached from a section of masonry structure upon which the apparatus is designed to operate to eect the repair of defective and impaired portions therein and to strengthen the structure;

Figure 2 is an end view, taken from the plane indicated by the line 2 2, Figure l;

Figure 3 is a portion of Figure 1, upon an enlarged scale;

Figure 4 is a view similar to Figure l showing the improved apparatus operatively connected with the masonry structure, .the latter having S5 already been operated upon by the apparatus and being shown in repaired and strengthened condition;

Figure 5 is a portion of Figure 4, upon an enlarged scale;

Figure 6 is a vertical section, taken in the plane indicated by the line 6 6, Figure 5; and

Figure l is a view, upon the-same scale as that of Figure 5, showing a fragmentary portion of the completely repaired and strengthened masonry structure in finished condition.

Referring to the annexed drawing in which the same parte are indicated by the same respective numbers in the several views, a masonry structure l is shown as having interior defective areas such as the pockets 2 and fissures 3. For effecting the repair of these defective erom and streening the structure, a longitudinal hole t, Figure l., is drilled in the structure l whereby the material most deteriorated-is removed, the 1105 pockets 2 and it Within the general area under repair communicating with this hole e, and the latter adapted to accommodate the improved mech which provide for lorcinn, the repair material into the detective areas. yT

' 'This here 4 is made in the structure from a surface position which shows material water leakage., When the interior defective condition of the structure manifestly quite extensive, as evidenced by considerable surface leakage over a large surface area, a plurality of these repair holes 4 will be made and a corresponding nurn-l ber of distinct repair operations effected.

The repair mechanism includes an open-ended pipe 5 having an externally-threaded outer end 6 with which a nut 7 engages, there also being provided a sleeve 8 adapted to surround the central portion of the pipe 5 and having an inner-end handle member 9. The nut 7 forms a stop at the outer end of the pipe 5, for a purpose hereinafter fully explained, and is formed with termhial dat portions 7 for engagement with a suitable wrench. A portion of the exterior surface of the pipe 5 is threaded to co-operate with an internally-threaded portion of the sleeve 8,

the pipe 5 extending inwardly of the handle 9 of the sleeve 8 and having also a handle lo welded thereto, the extreme inner end of the pipe 5 being adapted to engage with a threaded bore upon one side of a valve body 1l. The other side of this valve body 11 is connected to one part l2 of a two-part coupling member whose other part 12' connects with a pipe 26 which communicates with the supply of repair material (not shown). The body 11 forms a seat for the control. mechanism 13 of the valve. When the handle 9 is turned to move the sleeve 8 longitudinally. of the pipe 5, the handle 10 is manually restrained from moving, which restraint obviates the displacement` of the pipe 5 from the body 11 and also prevents the movement of the pipe 5 with the sleeve 8.

The repair hole 4 in the structure 1 is made somewhat greater in diameter than the diameter ci the sleeve 8 so that this sleeve and the nut 'I can be readily inserted in the hole 4 and an annular space 25 remains between the wall of the hole 4 and the outer surface of the sleeve 8. In vorder to prevent escape of repair material through the space 25 from the inner end of the hole 4, when material is being forced through the pipe 5, I utilize a rubber, tubular cylindrical member 20 surrounding the pipe 5 between the nut 7 and the outer surface of a collar 17 loosely mounted upon the conveyor 5 adjacent the outer end of the sleeve 8, as shown in Figure 3. This tubular rubber member 20 is laterally expanded, as shown in Figure 5, when compressed by the threaded movement of the sleeve 8 longitudinally of the conveyor 5, vand thus subdivides the space 25 and prevents the movement of repair material troni the inner end of the hole 4 through the space 25.

The feed-pipe 5 is formed with an annular series of holes 19. more or less staggered, or at least not all in the same plane perpendicular to the axis of the conveyor 5, which holes 19 are adapted to communicate with radial holes 18 in the collar 17, and hence also with an annular groove 18' formed in the interior surface of the collar 17 and communicating with the holes 18. When the apparatus is assembled and tightened for working conditions, as seen in Figure 5, the repair material is forced into and through the pipe 5 and escapes through the holes 19 and 18 vand also escapes from ythe outer lend of the conveyor 5, and thus lls the pockets 2 and fissures 3 in the masonry structure communicating with the hole 4, and also fills the space 25 around the sleeve 8 and the inner end of the hole 4, all as clearly shown in Figure 5.

In order that the repair material thus being forced into the masonry structure 1 may not escape from the front of the structure and yet maybe forced into the fissures and pockets communicating with the front surface of the structure, I provide a face plate 14 loosely surrounding the sleeve 8 and adapted to be resilientlyspaced from the face of the masonry structure 1 by an annular rubber collar 15 seated in a groove formed in the inner face of the plate 14 and extended from said inner face, this face plate 14 being tightened against the face of the masonry structure 1, after the repair mechanism is in position, by means of a nut 16 co-operating with the externally threaded sleeve 8. The space 27 between the outer surface of the masonry structure 1 and the inner face of the plate 14 permits repair material to `escapefrom the space 25 into the space 27 whence it is forced into the fissures 3 which intersect the surface of the structure l. f

The process effected by the improved apparatus shown in the accompanying drawing and previously described is worked as follows. The repair hole 4 is cored out of the structure l and in a defective area thereof, as indicated by the leakage conditions upon the surface of the structure l, which hole .4 intersects a number of the pockets 2 and fissures 3 of the area to be repaired. Then the pipe 5 and associated elements are inserted in the' hole 4, in the manner suggested by Figure 1 and to the extent desired, preferably within a few inches of the inner end of the hole 4. The handle 9'is then operated to move the sleeve 8 and the collar 17 inwardly of the structure l, thus expanding the rubber annulus 20 in the manner clearly shown in Figure 5, locking or anchoring the pipe 5 and associated parts in the hole 4. and bringing the ports 18 of the collar 17 into registry with the ports 19, or some of said ports 19, in the pipe 5. The face plate or shield 14 is 'then rigidly tightened against the surface of the structure 1 by-means of the nut 16, The repair material is then fed under high pressure into and 120 through the tube 5 whence it flows into the inner end of the hole 4 through the open end of the tube, and into the space .25 through the ports 19 and 18, and into the space 27 between the front wall of tlie structure 1 and the face plate 14.125 'Friese various chambers into which the repair material is thus forced provide for the feeding of this material into and through the various pockets 2 and fissures 3 which communicate with the hole 4 or communicate with that part of the front face 130 of the structure l which is under repair. After: the repair material has properly set, the handle 9 is operatedl to back off the sleeve 8 and permit the rubber annulus 20 to contract, when the repair apparatus can be removed from the hole 4. That '135 part of the hole 4 which was occupied by the repair apparatus is then plugged with repair material 23, and the surface of -the structure 1 which was covered by the face plate 14 trimmed so as to present the neat and smooth appearance shown in Figure 7. Thus, the defective and leaky areas of the structure are repaired, and the structure is strengthened due to the lling of the internal voids thereof. y

I direct particular attention to the convenient operation and economical manufacture of the apparatus shown and described. It will be particularly noted that when suoli apparatus is removed y from. the repair job, there are no worhing par-ts 150 left. in the job; hence, no added oost by reason oir ilie loss o! repair parte.

I iurilier direct particular attention to Jhe fact met the iron linge, or other waterproofing maierielwiili which the grout is lated, ore Ioroecl into iiie interior .of the structure under repair, end noi; merely thrown or sprayed or otherwise forcibly projected against an exterior suri'ee oi the sti'ucture.

Tire repair material euch as mout in e, ereemy condition, and the oxidizable moieriol emi o preponeieroni; portion oi Water, are ioroeol imo the structure under repair by any sulielole ioreiiig ineens wliieh develops sufficient pressure, emi one suoli exiiielole forcing medium is compressed eli'. The exidizeiole materiel, which preiereloly io iron lings, is 'forced into the structure ira subemeiiev pure siem; that is. before ii. ieee been pei'- iieliy ol'ieimeelly mated: neem, or oxidized. "mais oxidizelile meieriel is so eesocioieel vliili 'time other agents time oxidation ieizes @ieee very Tommy. 'lire poriieles of iron expend Wiiliiri ehe Looree end cavities of ehe structure io completly fili the seme. if desiree., e :suitable oxidizing eeeeleeetoi, suoli es omonimo chloride, sodium chloride, livelroeliloiio eciil, end elim, may loe utilized so ee i-o insure ilie @miek and eileeiive oxlcletiori oi 'ille iron periieles.

what 'i claim is:

l. msgoeretiie ior treating mommy eimioiiireo comprising; e, tubular conveyor; e sleeve liereior emi moveble loiigiiodimellv thereof; e :ii/op member upon ille conveyor; emol Exeter-elly ezipeoeiiile member surrounding; solo. oonvevor oeiweeri one end ef seid sleeve sind seid simo member.

iloporeiue ior meeting memories? eirueaiiree eomerieiiig e. tubular oom/ever; e. @sleeve iliereor emi movable loneitmlinellgv thereof; e e'bop mem@ eer einen the conveyor; enel e iuloiiler iolocksurroun the conveyor between one end of said sleeve end said stop member.

3. operates iur treating nry structures 1 jeviiii emi having ou operating handle; o, mit eeeured upon the end of seid conveyor; and a tulouior weber bloolr siu'roimdine the conveyor between one end of said sleeve omi seid out.

- i.-eeporeios for treating masonry stroovfoires eeerier'leiiig e. tubular open-ended con-v vevor formeel with e series o well diecharge porte; e, stop member secured exieriorly oi' and edjoeerii; one emi of the conveyor; e collar surrounding the conveyor, movolilelomgitmlmelly thereof, and leaving a series oi ports adopted to eommimioete with the conveyor porte; e laterally exeemeilole member ieetween seid stop member eine. eeid coller; end e 'sleeve bovine screwilireeiieel engagement with the eonveyor emi eilepied io move seid coller io expand the eroi peneilole member and 'io bring seiel porte into reielil'y.

o. imperatori for Meeting masonry 'structures comprising o iiilmier open-ended eomveyor :formeel with e eeriee oi weil @immerge ports; e. eisoo member secured exteriorly of eind efiooerit one emi oi' the oonveyoi.; ve coller? oorioundirie ille conveyor, movelole loneiiueimellry ilieieol?, end lievirie e series of poros miami/eel izo communieeie mili ilieooiiveyor ports; e, leeerelly erm-emeiiole niemeer between seid stop member end eold. eoller; e sleeve lievirig screw-tweede@ ezoeezie= mem with ilie conveyor end edepteii io move seid coller to expend ilie expensilile member emi 13o brine; eld eerie into iegieiry; e. ieee pleite eiirrouiielieg ,the eleeve emi movelole ineiiu diiiellg; ihereoi; enel meeme for locking' me ieee plete im ooljusied position. 

